Spark arrester and consumer



no Model.)

A .-BERNE'Y. SparkuA rrester and Consumer. No.- 240,005.

' Patented April 12',

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INVENTU MPETERS, PNOTO-LITHOGRAPHER. WASWNG'TONv I), C..

UNITED STATES PATENT Y OFFIG:

ALFRED .BERNEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE GLOBE COMPANY,OF HARTFORD, CONNECTICUT.

SPARK ARRESTER AND CONSUMER.

SPECIFICATION forming part of Letters Patent No. 240,005, dated April12, 1881.

' Application filed March 12, 1861. (No model.)

To all whom it may concern Beit known that I, ALFRED BERNEY, a citizenof the United States, residing at the city of Boston, in the county ofSuffolk and 5 State of Massachusetts, have invented certain new anduseful Improvements in Spark Consumers and Arresters; and I do herebydeclare the following to be'a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

r My invention relates to that class of spark arresters and deflectorsin which the sparks,

air, steam, and unconsumed products of combustion are deflected andreturned to the furnace or ash-pan to aid the combustion of the fuel aswell as the sparks; and the object is to consume the sparks and productsof combustion in a more thorough manner than has been done heretofore.

The invention consists in the construction 2 and arrangement of parts,as will be more fully described hereinafter, reference being had to theaccompanying drawings and theletters of reference marked thereon.

In the drawings, Figure 1 is a longitudinal vertical section ofalocomotive-boiler with my improvements in position. Fig.2 is a verticalcross-section on line as m. Fig. 3 is a detail view of the furnace andreturn-pipe leading into the ash-pan.

1n the drawings, A represents a locomotive-boiler, having the usualfurnace,B, tubes C, smoke-arch 1), and chimney or smoke-stack E. Thechimney is provided with an inner pipe, F, orer which is arranged acone, G, and wire-netting H, and at its lower end is an ordinary draftor petticoat pipe, I, below which are the usual exhaust-tips, K. Any

other suitable cone and wire-netting may be employed than the one shown,as the sparks are merely checked and turned down into the annular spaceformed between the -inner and outer barrels of the chimney, which aresecured to a saddle, L, provided with inclined guides that lead into apipe, N, which is con- 50 nected to the return-fines by an auxiliarychamber, B, into which the sparks and products are drawn by an exhaustor live steam jet, M, and forced through the return-fines 0 into thefurnace or ash-pan.

Tubes-(shown in dotted lines) may be extended from chamber R to thefront side of the smoke-arch, to admit additional air, if required, anda damper may be arranged in said tubes.

The flues connect with a vertical line, P, havinga curved end, whichextends between the two grates ab in the furnace. The flues l? areprotected by a casing, Q, composed of fire-brick, asbestus, or othersuitable non-conducting material, held in place in any wellknown manner.

The lower grate, upon which the sparks, &c., are thrown, assists in thecombustion of the fuel, as small pieces falling upon it from the uppergrate are retained by it.

If the fines are large enough and. the force or quantity of steam issufliciently great, all the air required for the proper combustion ofthe fuel can be forced into the ash-pan. By this means the coals andcinders from the 75. grate or ash-pan are prevented from setting fire tobuildings, wood, 850., and in case of snow-storms the use of ash-pandoors is obviated.

The benefits of steam and hot air to aid in the combustion of fuel arewell known, and a locomotive may be equipped with the air and steampipes combined with spark-arresting devices or not; but it will alwaysbe more economical to employ them together.

Having thus described my invention, what I claim, and desire to secureby Letters Patcut, is-

1. 'In a'spark arrester and consumer, the return-flues O, having thevertical or curved o ends, protected by a casing of fire-brick or othernon-conducting material,- arranged within the furnace, substantially asspecified.

2. In a spark arrester and consumer, the combination of the chimney E,saddle L, pipe 5 N, and auxiliary chamber It with the returnflues 0,having the downward-projecting ends protected by a non-conducting casingand extending between the upper and, lower grates of a furnace,substantially as set forth. 10o

3. In a spark arrester and consumer, the 4. In a spark-arrester, thecombination of combination of the chimney E, having annular the grates band ash-pan 12, substantially as set space, the saddle L, provided withinclined forth. guides leading to the pipes N and auxiliary In testimonywhereof I affix my signature 5 chamber'R, and the steam-jet M, with therein presence of two witnesses.

turn-fines 0, provided with curved ends, protected by a non-conductingcasing and extend- ALFRED BERNEY' ing into the furnace or ash-pit, allarranged -Witnesses: substantially as shown, and for the purpose I. N.BERNEY, [0 herein described. S. H. WALKER.

